Pulverizer.



M. J. WILLIAMS.

PULVERIZER. APPLICATION FILED FEB. 16, 1909.

939,779; Patented Nov. 9, 1909.

lnvenbor: Milton J.W1H1ams.

ABBY.

MILTON J. WILLIAMS,

T OFFICE.

OF CHICAGO, ILLINOIS.

PULVERIZER.

Specification of Letters iatent.

Patented N 0V. 9, 1909.

Application filed February 16, 1909. Serial No. 478,212.

To all'whom it may concern:

Be it known that I, Mnzrox .I'. \Vnaaans, a citizen of the UnitedStates, residing at Chicago, Illinois, have invented a certain new anduseful Improvement in lulverizers, of which the following is a full,clear, and

exact description. such as will enable others skilled in the art towhich it appertams to 3 make and use the same, reference hemg had f tothe accompanying drawings, forming part. ot this speclficatlon, m wlnch-Figure 1 is a vertical sectional through a pulverizer constructedaccording I to my improvement; Fig. 2 is a horizontal iraglnentarvsectional view through the same.

This invention relates to a new and useful improvement in pulverizcrs ofthat t vpe commercially .Xnown the "Williams mills", channrterized bythe pivoted revolving hamn'iers which act upon the material as it entersthe machine at the hopper or feed end thereof, crushing said material asit rests upon the bottom of the hopper, or breaker plate, as it isson'ictimes called, the material l'ieing further disintegrated orcrushed by the hammers acting-thereon as the material carried over thecage or grinding surface. The crushed material falls through theopenings in the cage. or grinding surface into a suitable. receptaclelocated beneath the machine. The hammers or heaters which revolve aboutthe shaft, while made of a material whose resistance to wear isitsessential quality,-Will, in time, wear awa at their striking ends,and the farther these striking ends are removed from the breakm' plateand grinding surface, the less lwconu-s the capacity of the machine.

it is the purpose of my present invention to provide means wherein theserevolving hammers or l'araters may be adjusted ontwardly to take up thiswear (or inn-arrlly, it

occasion requires, as when a new cage is introduced to replace a wornone), said means being operable from the inside of the casing andell'ecting thc simt-lltaneous and uniform adjustment of all the hammersor heaters.

5 is a shalt mounted in hearings in the side. frames of the machine, oneend of said shalt carrying a pulley (3 and the other end, a balancewin-cl (not shown), it. desired. Within the casing ol the machine, shaft5 carries head pieces 7. laptwecn which head pieces and feathered onshaft 5 is arranged an adjustable cone 8. Threaded rods 9 view 1 tproject from the base of the cone through l one ot the head plates 7. iit) are lugs arranged betweenthe head pieces '7, said lugs being formedwith openings for the passage of clamping screws 11. ()u some of theseclamping screws are levers 12, whose inner end." bear against cone Theouter ends of levers l2 carry pivoted hammers tijwhich act upon thematerial 1 to he reduced in the machine.

ln operation. it the hammers lit Wear at 1 their striking ends the cone8 is adjusted j so that the inner ends ot all ot the levers ll'ltlk downinclined snrtacc ot' the cone, l

which causes the hammers to move outwardly. such outward movement takingup the wear on the hammer ends. The outer ends of lovers 12 are mostheavily weighted, and coast-intently centrifugal force will act uponsuch outer ends olj said levers. causing their inner ends at all times,in operation. to hug the surface of the cone... When the proper:nljustnu-nt has been ell'ect'cd, the cone locked against:-longitiulinal displace ment by the nuts on the rods t). These nuts arearranged on each sideof a ring it secured in position upon one of thehead casings 7.

I am aware that minor changes in the construction, arrangement andcombination of the several parts of my device can be made andsubstituted for those herein shown and described without in the leastdeparting from the nature and principle of my invention.

Having thus described no,inventiomwhat I. claim is:

1. in a pulverizer, the combination with a casing, oi' a shat't mountedtherein, head pieces on the shatt within the casing, a series of leversarranged lmtween the head pieces, hammers pivotally carried by thelevers, a member arranged to slide on the shalt between the head piecesand engaging all of the levers and adjustable means seated in i one ofthe head pieces and engaging said sliding member.

2. In a pulverizer, the continuation with t a casing, oi pivotedrevolving hammers arranged in said casing, a shaft for carrying i saidhannners, head pieces on the shaft and between which said hammers aremounted, and means arranged wholly within the casi iug and cooperatii'igwith. one of said head pieces for adjusting said boaters inwardly andoutwardly.

3. In a pulverizer, a casing, a shaft journaled therein, head pieces onthe shaft within the casing, rods connecting said head pieces, levers ofdifferent lengths mounted on said rods, hammers pivotally carried by theouter ends of the levers, a conical member loosely mounted on the shaftbetween the head pieces and engaging the inner ends on the levers andadjustable means seated in one of the head pieces for shifting theconical member lengthwise upon the shaft.

4:. In a pulverizer, thecombination with a casing, a shaft mounted insaid casing,

head pieces carried by said shaft, a cone mounted between the headpieces, means for adjusting said cone longitudinally upon the shaft,rings secured in position between said head pieces, levers pivotallymounted between said rings and having their inner ends bearing upon saidcone, and hammers or beaters carried by the outer ends of said levers. v

5. In a pulverizer, a casing, a shaft mounted for rotation therein, headpieces arranged on the shaft, levers pivotally held between the headpieces, rotating hammers pivotally carried by the outer ends of thelevers, an adjustable member arranged between the head pieces andcooperating with the inner ends of the levers foradjustin the hammersinwardly and outwardly, an means whereby said adjustable member islooked after adjustment.

6. In a pulverizer, a casing, a shaft mounted for rotation therein, headpieces on the shaft within the casing, a series of sets of leverspivotally mounted between the head pieces, rotating hammers pivotallycarried by the outer ends of the levers, a cone arranged to slide uponthe shaft between the head pieces and with which cone the inner ends ofall of the levers engage,

and fneans carried by said cone and passing through one of the headpieces for m ing the cone to adjust the hammers inwardlv and outwardly.

In testimony whereof I hereunto affix my signature in the presence oftwo witnesses,

this 8th day of February, 1909.

MILTON J. WILLIAMS.

Witnesses:

WILLIS MELVILLE, I REINHOLD E. WINTER.

